Ventilation equipment with fan set convenient to replace and preparation process of ventilation equipment

Abstract

The invention provides ventilation equipment with a fan unit convenient to replace and a preparation process thereof, and relates to the technical field of ventilation equipment.The ventilation equipment comprises a square shell, the fan unit is arranged in the square shell, a plurality of grooves are formed in the inner wall of the square shell, the fan unit comprises a base, and four supporting plates are fixedly connected to the outer surface of the base; a sliding shell is slidably connected to the outer surface of the supporting plate, a fixing mechanism is arranged on the inner wall of the sliding shell, a fixing block is fixedly connected to the outer surface of the sliding shell, a rotating hole is formed in one side of the fixing block, and a rotating rod is rotatably connected to the inner wall of the rotating hole. Force towards the supporting block is given to the sliding plate through the springs, then the sliding plate can drive the sliding shell to enter the groove, the fan unit can be fixed into the square shell, the structural stability of the fan unit in the square shell can be further improved through cooperation of the multiple sets of springs, and the service life of the fan unit is prolonged. And the fan unit is convenient to replace.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation equipment, and in particular to a ventilation equipment which is convenient for replacing a fan unit and a preparation process thereof. Background Art

[0002] In the industrial and construction fields, fan units are the core components of ventilation systems. Their stability and maintainability are crucial to the overall efficiency and operational safety of the system. However, the existing methods of fixing and installing fan units still have problems in many aspects, especially during maintenance and replacement.

[0003] Traditional fan units are usually fixed inside the equipment housing by bolts and fixing brackets. Although this fixing method can provide sufficient stability during the initial installation, it often requires the removal of a large number of fixing parts during subsequent maintenance and replacement, which increases the complexity and time cost of the operation; At the same time, in the process preparation, if a large area of ​​316L stainless steel plate is used as the raw material, the large area and high strength have high processing difficulty, the preparation process is not ideal, and the processing is difficult. Therefore, a ventilation equipment and its preparation process that are easy to replace the fan group are needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art. Traditional fan units are usually fixed inside the equipment housing by bolts and fixing brackets. Although this fixing method can provide sufficient stability during the initial installation, it often requires the removal of a large number of fixing parts during the subsequent maintenance and replacement process, which increases the complexity and time cost of the operation; At the same time, in the process preparation, if a large area of ​​316L stainless steel plate is used as the raw material, the large area and high strength have higher processing difficulty, the preparation process is not ideal, and the processing is more difficult.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a ventilation device that is easy to replace the fan unit, comprising a square shell, a fan unit is arranged inside the square shell, a plurality of grooves are opened on the inner wall of the square shell, the fan unit comprises a base, the outer surface of the base is fixedly connected with four support plates, the outer surface of the support plate is slidably connected with a sliding shell, the inner wall of the sliding shell is provided with a fixing mechanism, the outer surface of the sliding shell is fixedly connected with a fixing block, a rotating hole is opened on one side of the fixed block, the inner wall of the rotating hole is rotatably connected with a rotating rod, the two ends of the rotating rod are fixedly connected with a clamping rod, the outer surface of the support plate is fixedly connected with a clamping plate, the inner wall of the base is fixedly installed with a motor, the output end of the motor is fixedly connected with a fan, and the outer surface of the sliding shell is slidably connected with the inner wall of the groove.

[0006] As a preferred implementation, a ventilation hole is opened on one side of the square shell, one end of the ventilation hole is fixedly connected to a trumpet tube, and one end of the trumpet tube is fixedly connected to one side of the square shell.

[0007] As a preferred embodiment, the fixing mechanism includes a slide groove opened on the outer surface of the support plate, the inner wall of the slide groove is opened with a limiting groove, and the limiting groove is opened inside the slide groove in the support plate.

[0008] As a preferred embodiment, a slide plate is slidably connected to the inner wall of the slide groove, four protrusions are fixedly connected to one side of the slide plate, and a sliding hole is formed on the outer surface of the slide plate.

[0009] As a preferred embodiment, a support rod is slidably connected to the inner wall of the limiting groove, and an outer surface of the support rod is slidably connected to the inner wall of the sliding hole.

[0010] As a preferred implementation, the fixing mechanism further includes two hinges fixed to the outer surface of the sliding shell, and the other side of the hinge is fixedly connected to a connecting plate.

[0011] As a preferred embodiment, a bolt is provided on one side of the connecting plate, and one side of the connecting plate is fixed to the inside of the protrusion by the bolt and is fixedly connected to one side of the slide plate.

[0012] As a preferred embodiment, one end of the support rod is fixedly connected to a support block, one side of the support block is provided with two fixing grooves, the inner wall of the fixing groove is provided with a sliding hole, the inner wall of the sliding hole is slidably connected with a screw, the outer surface of the support block is slidably connected to the inner wall of the sliding shell, the outer surface of the support block is provided with a spring, one end of the spring is fixedly connected to one side of the slide plate, and the other end of the spring is fixedly connected to one side of the support block.

[0013] As a preferred embodiment, the fixing mechanism further comprises two thread grooves formed on one side of the support plate, and the inner walls of the thread grooves are threadedly connected to the outer surfaces of the screws.

[0014] A ventilation equipment preparation process for facilitating replacement of a fan unit comprises the following specific steps: 1) Place the sheet on the workbench of the spinning machine, ensure that there is an appropriate gap between the sheet and the rotating mold of the spinning machine, make the rotating mold rotate at a predetermined speed, and adjust the inner rotation function of the spinning machine to ensure uniform spinning of the sheet. At the same time, increase the spinning pressure to make the sheet evenly stressed, so as to make a trumpet tube; 2) Cast the appearance of a square shell in the form of injection molding, take out the square shell after cooling, and groove the inside of the square shell. Use the protruding part of the square shell as the reference position, fix the square shell workpiece on a CNC milling machine for groove, clean the cutting edge after groove, remove burrs and trim irregular parts by grinding, obtain a square shell, and fix the square shell to the horn tube by welding; 3) Cut the plate by cutting to obtain a support plate with a slide groove, grind and cut the other side of the support plate to obtain a support plate with a certain curvature, then fix the support plate on the workbench, and drill the inner wall of the slide groove with a drill bit to obtain a support plate with a limit groove, and then select the corresponding thread milling cutter according to the model of the screw to open the thread groove on the support plate to obtain a support plate with a slide groove and a limit groove; 4) Cut the plate according to the shape of the sliding shell to obtain a support block, and cut the fixing groove and sliding hole through drill bits of different sizes. The two drill bits are respectively matched with the screw rod and screw head of the screw to obtain a support block with a fixing groove and sliding hole; 5) Select an injection mold suitable for the shape of the skateboard and the bump to make the skateboard and the bump, then fix the skateboard and the bump on the workbench, select a thread milling cutter suitable for the bolt to perform thread processing on the skateboard and the bump, open a screw groove suitable for the bolt, and open the screw groove processing based on the bump, then select a drill bit suitable for the support rod to perform hole processing on the skateboard to obtain the skateboard and the bump; 6) The outer surface of the support plate is fixed to the clamping plate by welding, the outer surface of the sliding shell is fixed to the fixing block by welding, and the inner wall of the fixing block is fixed to the rotating rod by the bearing, and the clamping rods are fixed to both ends of the rotating rod; 7) Fix the support rod and the spring to one side of the support block, and the spring is located on the outer surface of the support rod. At the same time, slide the slide plate onto the outer surface of the support rod, and fix the spring and the slide plate; 8) Four support plates are selected and fixed to the outer surface of the base. The arc of the support plate is fixed between the base, and the four support plates are fixed to the outer surface of the base at equal distances. The motor is installed inside the base, and the fan is fixed to the output end of the motor; 9) Use the support rod as the main positioning point to slide the support rod into the inside of the limit groove, use the sliding hole and the thread groove as the secondary positioning points to align, and then fix it with screws passing through the fixing groove and the sliding hole and the thread groove; 10) Fix the sliding shell and the connecting plate through a hinge by means of screws, rotate the connecting plate away from the pipe opening of the sliding shell, and slide it onto the outer surface of the supporting plate at this position, and then fix the connecting plate and the sliding plate by means of bolts to obtain the fan unit; 11) Control the clamping rod to enter the interior of the clamping plate, then control the fan unit to enter the interior of the square shell, stop at the groove and separate the clamping rod from the clamping plate to complete the assembly.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, the length of the support plate is extended by a fixing mechanism, and the fixing mechanism can be controlled at the same time, so that the fan unit can be easily disassembled, replaced and fixed. The fixing block and the rotating rod can facilitate the rotation of the clamping rod, so that the clamping rod and the clamping plate can be controlled to cooperate, so that the position of the sliding shell can be fixed, thereby increasing the convenience of the equipment.

[0016] 2. In the present invention, a force is given to the slide plate toward the support block by the spring, so that the slide plate can drive the sliding shell into the interior of the groove, so that the fan unit can be fixed inside the square shell, and multiple sets of springs are used to cooperate, so as to further increase the structural stability of the fan unit inside the square shell, thereby facilitating the replacement of the fan unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention provides a structural stereogram of a ventilation device and a manufacturing process thereof that facilitates replacement of a fan unit; Figure 2 The present invention proposes a ventilation device and a manufacturing process thereof that facilitates the replacement of a fan unit, and a structural stereogram between a fan unit and a square shell; Figure 3 The present invention provides a ventilation device and a manufacturing process thereof for facilitating replacement of a fan unit, and a structural stereogram of the fan unit; Figure 4 The present invention proposes a ventilation device and a manufacturing process for a fan unit that is convenient for replacing the fan unit, and an exploded structural stereogram of the fan unit; Figure 5 The present invention proposes a three-dimensional diagram of the exploded structure of the fixing mechanism of a ventilation device and a preparation process thereof for facilitating replacement of a fan unit; Figure 6 The present invention provides a ventilation device that is convenient for replacing a fan group and a structural stereogram between a support plate and a support block and a preparation process thereof.

[0018] Legend: 1. Square shell; 2. Fan unit; 3. Groove; 4. Trumpet tube; 21. base; 22. support plate; 23. sliding shell; 24. fixing block; 25. rotating rod; 26. clamping rod; 27. clamping plate; 28. motor; 29. ​​fixing mechanism; 210. fan; 291. Support rod; 292. Slide groove; 293. Limiting groove; 294. Hinge; 295. Connecting plate; 296. Slide plate; 297. Bump; 298. Bolt; 299. Support block; 2910. Fixing groove; 2911. Slide hole; 2912. Screw; 2913. Threaded groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0020] like Figure 1-6 As shown, the present invention provides a technical solution: a ventilation device that is easy to replace a fan unit, comprising a square shell 1, a fan unit 2 is arranged inside the square shell 1, a plurality of grooves 3 are provided on the inner wall of the square shell 1, the fan unit 2 comprises a base 21, four support plates 22 are fixedly connected to the outer surface of the base 21, a sliding shell 23 is slidably connected to the outer surface of the support plate 22, a fixing mechanism 29 is provided on the inner wall of the sliding shell 23, a fixing block 24 is fixedly connected to the outer surface of the sliding shell 23, a rotating hole is provided on one side of the fixing block 24, a rotating rod 25 is rotatably connected to the inner wall of the rotating hole, a clamping rod 26 is fixedly connected to the two ends of the rotating rod 25, a clamping plate 27 is fixedly connected to the outer surface of the support plate 22, a motor 28 is fixedly installed on the inner wall of the base 21, a fan 210 is fixedly connected to the output end of the motor 28, and the outer surface of the sliding shell 23 is slidably connected to the inner wall of the groove 3; Through the above embodiment, the length of the support plate 22 is extended by the fixing mechanism 29, and the fixing mechanism 29 can be controlled, so that the fan unit 2 can be easily disassembled, replaced and fixed, and the fixing block 24 and the rotating rod 25 can facilitate the rotation of the clamping rod 26, so that the clamping rod 26 can be controlled to cooperate with the clamping plate 27, so that the position of the sliding shell 23 can be fixed, thereby increasing the convenience of the device; A ventilation hole is provided on one side of the square shell 1, one end of the ventilation hole is fixedly connected to a trumpet tube 4, and one end of the trumpet tube 4 is fixedly connected to one side of the square shell 1; The fixing mechanism 29 includes a slide groove 292 formed on the outer surface of the support plate 22 . The inner wall of the slide groove 292 is formed with a limiting groove 293 . The limiting groove 293 is formed inside the slide groove 292 in the support plate 22 .

[0021] The inner wall of the slide groove 292 is slidably connected with a slide plate 296, one side of the slide plate 296 is fixedly connected with four protrusions 297, and the outer surface of the slide plate 296 is provided with a sliding hole; The inner wall of the limiting groove 293 is slidably connected with a support rod 291, and the outer surface of the support rod 291 is slidably connected with the inner wall of the sliding hole; The fixing mechanism 29 also includes two hinges 294 fixed to the outer surface of the sliding shell 23, and the other side of the hinge 294 is fixedly connected to a connecting plate 295; A bolt 298 is provided on one side of the connecting plate 295, and one side of the connecting plate 295 is fixed to the inside of the protrusion 297 and fixedly connected to one side of the sliding plate 296 by the bolt 298; One end of the support rod 291 is fixedly connected to a support block 299, one side of the support block 299 is provided with two fixing grooves 2910, the inner wall of the fixing groove 2910 is provided with a sliding hole 2911, the inner wall of the sliding hole 2911 is slidably connected with a screw 2912, the outer surface of the support block 299 is slidably connected to the inner wall of the sliding shell 23, the outer surface of the support block 299 is provided with a spring 2914, one end of the spring 2914 is fixedly connected to one side of the slide plate 296, and the other end of the spring 2914 is fixedly connected to one side of the support block 299; The fixing mechanism 29 further includes two thread grooves 2913 formed on one side of the support plate 22, and the inner wall of the thread groove 2913 is threadedly connected to the outer surface of the screw 2912; According to the above embodiment, the spring 2914 gives the slide plate 296 a force toward the support block 299, so that the slide plate 296 can drive the sliding shell 23 into the inside of the groove 3, so that the fan unit 2 can be fixed inside the square shell 1, and the multiple sets of springs 2914 are used to cooperate, so as to further increase the structural stability of the fan unit 2 inside the square shell 1, so as to facilitate the replacement of the fan unit 2; A ventilation equipment preparation process for facilitating replacement of a fan unit comprises the following specific steps: 1) Place the sheet on the workbench of the spinning machine, ensure that there is an appropriate gap between the sheet and the rotating mold of the spinning machine, make the rotating mold rotate at a predetermined speed, and adjust the inner rotation function of the spinning machine to ensure uniform spinning of the sheet. At the same time, increase the spinning pressure to make the sheet evenly stressed, so as to make the trumpet tube 4; 2) Cast the appearance of the square shell 1 in the form of injection molding, take out the square shell 1 after cooling, and groove the inside of the square shell 1, fix the workpiece of the square shell 1 on a CNC milling machine to groove the protruding part of the square shell 1 as the reference position, clean the cutting edge after groove, remove burrs and trim irregular parts by grinding, obtain the square shell 1, and fix the square shell 1 to the horn tube 4 by welding; 3) Cut the plate by cutting to obtain a support plate 22 with a slide groove 292, grind and cut the other side of the support plate 22 to obtain a support plate 22 with a certain curvature, then fix the support plate 22 on the workbench, and drill the inner wall of the slide groove 292 with a drill bit to obtain a support plate 22 with a limit groove 293, and then select a corresponding thread milling cutter according to the model of the screw 2912 to open the thread groove 2913 on the support plate 22 to obtain a support plate 22 with a slide groove 292 and a limit groove 293; 4) Cut the plate according to the shape of the sliding shell 23 to obtain the support block 299, and cut the fixing groove 2910 and the sliding hole 2911 by using drill bits of different sizes. The two drill bits are respectively matched with the screw rod part and the screw head part of the screw 2912 to obtain the support block 299 with the fixing groove 2910 and the sliding hole 2911; 5) Select an injection mold suitable for the shape of the slide plate 296 and the protrusion 297 to make the slide plate 296 and the protrusion 297, then fix the slide plate 296 and the protrusion 297 on the workbench, select a thread milling cutter suitable for the bolt 298 to perform thread processing on the slide plate 296 and the protrusion 297, open a screw groove suitable for the bolt 298, and open a screw groove processing based on the protrusion 297, then select a drill bit suitable for the support rod 291 to perform hole processing on the slide plate 296 to obtain the slide plate 296 and the protrusion 297; 6) The outer surface of the support plate 22 is fixed to the clamping plate 27 by welding, the outer surface of the sliding shell 23 is fixed to the fixing block 24 by welding, and the inner wall of the fixing block 24 is fixed to the rotating rod 25 by a bearing, and the clamping rods 26 are fixed to both ends of the rotating rod 25; 7) Fix the support rod 291 and the spring 2914 to one side of the support block 299, and the spring 2914 is located on the outer surface of the support rod 291. At the same time, slide plate 296 is slidably sleeved on the outer surface of the support rod 291, and the spring 2914 and slide plate 296 are fixed; 8) Four support plates 22 are selected and fixed to the outer surface of the base 21, the arc of the support plate 22 is fixed between the base 21, and the four support plates 22 are fixed to the outer surface of the base 21 at equal distances, the motor 28 is installed inside the base 21, and the fan 210 is fixed to the output end of the motor 28; 9) Assemble the support rod 291, spring 2914, support block 299, slide plate 296 and protrusion 297 on slide plate 296 with support rod 291 as the main positioning point, slide support rod 291 into the inside of limit groove 293, align with slide hole 2911 and thread groove 2913 as secondary positioning points, and then fix with screw 2912 through fixing groove 2910 and slide hole 2911 and thread groove 2913; 10) The sliding housing 23 and the connecting plate 295 are fixed by the hinge 294 through screws, the connecting plate 295 is rotated away from the pipe opening of the sliding housing 23, and is slidably sleeved on the outer surface of the supporting plate 22 at this position, and then the connecting plate 295 is fixed to the sliding plate 296 by bolts 298 to obtain the fan unit 2; 11) Control the clamping rod 26 to enter the interior of the clamping plate 27, and then control the fan unit 2 to enter the interior of the square shell 1, and stop at the groove 3 and separate the clamping rod 26 from the clamping plate 27 to complete the assembly.

[0022] Working principle: like Figure 1-6As shown, the plate is placed on the workbench of the spinning machine to ensure that there is an appropriate gap between the plate and the rotating mold of the spinning machine, so that the rotating mold rotates at a predetermined speed, and the inner rotation function of the spinning machine is adjusted to ensure uniform spinning of the plate. At the same time, the spinning pressure is increased to make the plate evenly stressed, so as to make the trumpet tube 4, and the appearance of the square shell 1 is cast in the form of injection molding. After cooling, the square shell 1 is taken out, and the inside of the square shell 1 is grooved. The protruding part of the square shell 1 is used as the reference position, and the workpiece of the square shell 1 is fixed on a CNC milling machine for grooves. After grooves, the cutting edges are cleaned, and burrs are removed and irregular parts are trimmed by grinding to obtain the square shell 1, and the square shell 1 is welded. The shaped shell 1 is fixed to the horn tube 4, the plate is cut by cutting to obtain a support plate 22 with a slide groove 292, and the other side of the support plate 22 is grinded and cut to obtain a support plate 22 with a certain curvature, and then the support plate 22 is fixed on the workbench, and the inner wall of the slide groove 292 is drilled with a drill bit to obtain a support plate 22 with a limit groove 293, and then the corresponding thread milling cutter is selected according to the model of the screw 2912 to open the thread groove 2913 on the support plate 22 to obtain a support plate 22 with a slide groove 292 and a limit groove 293, and the plate is cut according to the shape of the sliding shell 23 to obtain a support block 299, and a fixing groove 2910 and a sliding hole 2911 are cut by drill bits of different sizes, and two drill bits are used to drill the support plate 22. The heads are respectively matched with the screw rod part and the screw head part of the screw 2912 to obtain the support block 299 with the fixing groove 2910 and the sliding hole 2911, and an injection mold suitable for the shape of the slide plate 296 and the protrusion 297 is selected to make the slide plate 296 and the protrusion 297, and then the slide plate 296 and the protrusion 297 are fixed on the workbench, and a thread milling cutter suitable for the bolt 298 is selected to perform thread processing on the slide plate 296 and the protrusion 297, and a screw groove suitable for the bolt 298 is opened, and the screw groove processing is performed based on the protrusion 297, and then a drill bit suitable for the support rod 291 is selected to perform hole processing on the slide plate 296 to obtain the slide plate 296 and the protrusion 297, and the outer surface of the support plate 22 is fixed to the card plate by welding 27, the outer surface of the sliding shell 23 is fixed to the fixed block 24 by welding, and the inner wall of the fixed block 24 is fixed to the rotating rod 25 by a bearing, and the two ends of the rotating rod 25 are fixed to the clamping rod 26, the support rod 291 and the spring 2914 are fixed to one side of the support block 299, and the spring 2914 is located on the outer surface of the support rod 291, and the slide plate 296 is slidably sleeved on the outer surface of the support rod 291, and the spring 2914 and the slide plate 296 are fixed, four support plates 22 are selected to be fixed to the outer surface of the base 21, the arc of the support plate 22 is fixed between the base 21, and the four support plates 22 are equidistantly fixed to the outer surface of the base 21, the motor 28 is installed inside the base 21, and the fan 210 is fixed to the output end of the motor 28,The support rod 291, spring 2914, support block 299, slide plate 296 and protrusion 297 on the slide plate 296 are assembled with the support rod 291 as the main positioning point, so that the support rod 291 slides into the interior of the limit groove 293, and is aligned with the sliding hole 2911 and the thread groove 2913 as the secondary positioning points, and then the screw 2912 is passed through the fixing groove 2910 and the sliding hole 2911 and the thread groove 2913 to fix, and the sliding shell 23 and the connecting plate 295 are fixed by the hinge 294 through the screw, and the connecting plate 295 is rotated away from the pipe mouth of the sliding shell 23, and is slidably sleeved on the outer surface of the support plate 22 at this position, and then the connecting plate 295 is fixed to the slide plate 296 by the bolt 298, and the fan unit 2 is obtained, and the control rod 26 enters the interior of the card plate 27, and then the fan unit 2 is controlled to enter the interior of the square shell 1, and stops at the groove 3 and separates the rod 26 from the card plate 27 to complete the assembly;, The fixing block 24 is moved to move the sliding shell 23, and the sliding shell 23 is separated from the groove 3. Then the fixing block 24 is moved to move the sliding shell 23, and the sliding shell 23 is separated from the groove 3. Then the fixing block 24 is moved to move the sliding shell 23, and the sliding shell 23 is separated from the groove 3. Then the fixing block 24 is moved to move the sliding shell 23, and the sliding shell 23 is separated from the groove 3. Then the fixing block 24 is moved to move the sliding shell 23, and the sliding shell 23 is separated from the groove 3. Then the sliding shell 23 is separated from the groove 3, and the sliding shell 23 is separated from the groove 3.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A ventilation device that facilitates replacement of a fan unit, comprising a square shell (1), characterized in that: A fan unit (2) is arranged inside the square shell (1), and a plurality of grooves (3) are provided on the inner wall of the square shell (1). The fan unit (2) comprises a base (21), and four support plates (22) are fixedly connected to the outer surface of the base (21), and a sliding shell (23) is slidably connected to the outer surface of the support plate (22). A fixing mechanism (29) is arranged on the inner wall of the sliding shell (23), and a fixing block (24) is fixedly connected to the outer surface of the sliding shell (23). A rotating hole is provided on one side of the fixing block (24), and a rotating rod (25) is rotatably connected to the inner wall of the rotating hole. Clamping rods (26) are fixedly connected to the two ends of the rotating rod (25), and a clamping plate (27) is fixedly connected to the outer surface of the support plate (22). A motor (28) is fixedly installed on the inner wall of the base (21), and a fan (210) is fixedly connected to the output end of the motor (28). The outer surface of the sliding shell (23) is slidably connected to the inner wall of the groove (3).

2. A ventilation device for facilitating replacement of a fan unit according to claim 1, characterized in that: A ventilation hole is provided on one side of the square shell (1); one end of the ventilation hole is fixedly connected to a trumpet tube (4); and one end of the trumpet tube (4) is fixedly connected to one side of the square shell (1).

3. The ventilation device for facilitating replacement of a fan unit according to claim 1, characterized in that: The fixing mechanism (29) comprises a slide groove (292) formed on the outer surface of the support plate (22); a limiting groove (293) is formed on the inner wall of the slide groove (292); and the limiting groove (293) is formed inside the slide groove (292) in the support plate (22).

4. A ventilation device for facilitating replacement of a fan unit according to claim 3, characterized in that: The inner wall of the slide groove (292) is slidably connected to a slide plate (296), one side of the slide plate (296) is fixedly connected to four protrusions (297), and the outer surface of the slide plate (296) is provided with a sliding hole.

5. The ventilation device for facilitating replacement of a fan unit according to claim 3, characterized in that: The inner wall of the limiting groove (293) is slidably connected to a support rod (291), and the outer surface of the support rod (291) is slidably connected to the inner wall of the sliding hole.

6. The ventilation device for facilitating replacement of a fan unit according to claim 1, characterized in that: The fixing mechanism (29) further comprises two hinges (294) fixed to the outer surface of the sliding shell (23), and the other side of the hinge (294) is fixedly connected to a connecting plate (295).

7. A ventilation device for facilitating replacement of a fan unit according to claim 6, characterized in that: A bolt (298) is provided on one side of the connecting plate (295), and one side of the connecting plate (295) is fixed to the inside of the protrusion (297) and fixedly connected to one side of the sliding plate (296) through the bolt (298).

8. The ventilation device for facilitating replacement of a fan unit according to claim 5, characterized in that: One end of the support rod (291) is fixedly connected to a support block (299), one side of the support block (299) is provided with two fixing grooves (2910), the inner wall of the fixing groove (2910) is provided with a sliding hole (2911), the inner wall of the sliding hole (2911) is slidably connected to a screw (2912), the outer surface of the support block (299) is slidably connected to the inner wall of the sliding shell (23), the outer surface of the support block (299) is provided with a spring (2914), one end of the spring (2914) is fixedly connected to one side of the sliding plate (296), and the other end of the spring (2914) is fixedly connected to one side of the support block (299).

9. The ventilation device for facilitating replacement of a fan unit according to claim 1, characterized in that: The fixing mechanism (29) further comprises two thread grooves (2913) formed on one side of the support plate (22), wherein the inner wall of the thread groove (2913) is threadably connected to the outer surface of the screw (2912).

10. A process for preparing a ventilation device that facilitates the replacement of a fan group, comprising the ventilation device that facilitates the replacement of a fan group as claimed in any one of claims 1 to 9, characterized in that: The specific steps include: 1) Place the sheet on the workbench of the spinning machine, ensure that there is an appropriate gap between the sheet and the rotating mold of the spinning machine, rotate the rotating mold at a predetermined speed, and adjust the inner rotation function of the spinning machine to ensure uniform spinning of the sheet. At the same time, increase the spinning pressure to make the sheet evenly stressed, so as to make a trumpet tube (4); 2) Casting the appearance of a square shell (1) by injection molding, taking out the square shell (1) after cooling, and slotting the inside of the square shell (1), fixing the workpiece of the square shell (1) on a CNC milling machine to slot with the protruding part of the square shell (1) as the reference position, cleaning the cutting edge after slotting, removing burrs and trimming irregular parts by grinding, obtaining a square shell (1), and fixing the square shell (1) to the horn tube (4) by welding; 3) Cutting the plate by cutting to obtain a support plate (22) having a slide groove (292), grinding and cutting the other side of the support plate (22) to obtain a support plate (22) having a certain curvature, then fixing the support plate (22) on a workbench, and drilling the inner wall of the slide groove (292) with a drill bit to obtain a support plate (22) having a limit groove (293), and then selecting a corresponding thread milling cutter according to the model of the screw (2912) to open a thread groove (2913) on the support plate (22), thereby obtaining a support plate (22) having a slide groove (292) and a limit groove (293); 4) Cutting the plate in accordance with the shape of the sliding shell (23) to obtain a support block (299), and cutting the fixing groove (2910) and the sliding hole (2911) by using drill bits of different sizes, wherein the two drill bits are respectively matched with the screw rod portion and the screw head portion of the screw (2912) to obtain a support block (299) having the fixing groove (2910) and the sliding hole (2911); 5) Select an injection mold suitable for the shape of the slide plate (296) and the bump (297) to make the slide plate (296) and the bump (297), then fix the slide plate (296) and the bump (297) on a workbench, select a thread milling cutter suitable for the bolt (298) to perform thread processing on the slide plate (296) and the bump (297), open a screw groove suitable for the bolt (298), and open the screw groove processing with the bump (297) as the base position, then select a drill bit suitable for the support rod (291) to perform hole processing on the slide plate (296), and obtain the slide plate (296) and the bump (297); 6) The outer surface of the support plate (22) is fixed to the clamping plate (27) by welding, the outer surface of the sliding shell (23) is fixed to the fixing block (24) by welding, and the inner wall of the fixing block (24) is fixed to the rotating rod (25) by bearings, and the clamping rods (26) are fixed to both ends of the rotating rod (25); 7) Fix the support rod (291) and the spring (2914) to one side of the support block (299), with the spring (2914) being located on the outer surface of the support rod (291), and slidingly sleeve the slide plate (296) on the outer surface of the support rod (291), and fixing the spring (2914) and the slide plate (296); 8) Four support plates (22) are selected and fixed to the outer surface of the base (21), the arc portion of the support plate (22) is fixed to the base (21), and the four support plates (22) are fixed to the outer surface of the base (21) at equal distances, the motor (28) is installed inside the base (21), and the fan (210) is fixed to the output end of the motor (28); 9) The support rod (291), the spring (2914), the support block (299), the slide plate (296) and the protrusion (297) on the slide plate (296) are assembled with the support rod (291) as the main positioning point, so that the support rod (291) slides into the interior of the limit groove (293), and is aligned with the sliding hole (2911) and the thread groove (2913) as the secondary positioning points, and then fixed by a screw (2912) passing through the fixing groove (2910) and the sliding hole (2911) and the thread groove (2913); 10) The sliding housing (23) and the connecting plate (295) are fixed by means of a screw through a hinge (294), the connecting plate (295) is rotated away from the pipe opening of the sliding housing (23), and is slidably sleeved on the outer surface of the support plate (22) at this position, and then the connecting plate (295) is fixed to the sliding plate (296) by means of a bolt (298), thereby obtaining a fan unit (2); 11) Control the clamping rod (26) to enter the interior of the clamping plate (27), then control the fan unit (2) to enter the interior of the square shell (1), stop at the groove (3) and separate the clamping rod (26) from the clamping plate (27) to complete the assembly.

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